New design for campaign news subscription

[RalitsaIlieva]

Closes partially #1550 (campaign news subscription)

Motivation and context

There is new design that should be implemented

Screenshots:

Before	After
Paste screenshot	Paste screenshot

Testing

Steps to test

Affected urls

Environment

New environment variables:

• NEW_ENV_VAR: env var details

New or updated dependencies:

Dependency name	Previous version	Updated version	Details
dependency/name	v1.0.0	v2.0.0

[github-actions]

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[ani-kalpachka]

@RalitsaIlieva well done!
Could you please check the conflicts?

[ani-kalpachka]

Is the backend for this task fully completed?

[RalitsaIlieva]

Is the backend for this task fully completed?

No, the backend should be checked. @igoychev is aware of this and promised to check

[slavcho]

What else do we need to do here?

[ani-kalpachka]

@RalitsaIlieva is this task completed from your perspective or you still need to do some work on it?

[RalitsaIlieva]

@ani-kalpachka @slavcho nothing has to be done here. The things are merged with the PR about the news subscription. News subscription PR included this campaign news subscription because when I started the work for the news subscription I branched from this one.

[slavcho]

Thanks @RalitsaIlieva . Can you suggest what else is needed to move this forward?

[sashko9807]

Thanks @RalitsaIlieva . Can you suggest what else is needed to move this forward?

I believe this is just a duplicate PR of #1673, and can be closed.

[ani-kalpachka]

Thanks! I will close this PR as a duplicate.